noun Alternative letter-case form of Alfa of the ICAO/NATO radiotelephony alphabet.
noun Alternative letter-case form of Alfa from the NATO/ICAO Phonetic Alphabet.
noun Alternative spelling of alpha used in the ruleset of the international nonproprietary name system, where various digraphs are usually deprecated (except for grandfathered exceptions) because their replacement is translingually preferable (thus, for example, f, not ph; t, not th; and e, not ae).